TaskFactory(Of TResult).FromAsync Method (IAsyncResult, Func(Of IAsyncResult, TResult))
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates a task that executes an end method function when a specified IAsyncResult completes.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Public Function FromAsync ( _ asyncResult As IAsyncResult, _ endMethod As Func(Of IAsyncResult, TResult) _ ) As Task(Of TResult)
Parameters
- asyncResult
- Type: System.IAsyncResult
The IAsyncResult whose completion should trigger the processing of the endMethod.
- endMethod
- Type: System.Func(Of IAsyncResult, TResult)
The function delegate that processes the completed asyncResult.
Return Value
Type: System.Threading.Tasks.Task(Of TResult)A Task(Of TResult) that represents the asynchronous operation.
| Exception | Condition |
|---|---|
| ArgumentNullException | The asyncResult argument is Nothing. -or- The endMethod argument is Nothing. |
Show: